Home / 229,278.98-343,685.19-212,307.86

Finding the Fourth Proportional to 229,278.98, 343,685.19 and 212,307.86

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Solution

The fourth proportional to 229,278.98, 343,685.19 and 212,307.86 is: 318,245.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,278.98 : 343,685.19 = 212,307.86 : x
  2. Step 2: Convert to fraction form
    229,278.98/343,685.19 = 212,307.86/x
  3. Step 3: Cross multiply
    229,278.98x = 343,685.19 × 212,307.86
  4. Step 4: Simplify right side
    229,278.98x = 72,967,067,202.59
  5. Step 5: Solve for x
    x = 72,967,067,202.59/229,278.98
  6. Step 6: Final answer
    x = 318,245.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.